Low-cost IoT gas concentrator system prototype

Currently, IoT (Internet of Things) applications based on gas monitoring are essential for areas such as food, health and industry, examples of which are detecting the fresh-ness of food [1], gastrointestinal diseases [2] or pipe leaks [3]. IoT systems are based on one or more electronic devices with sensors and/or actuators that send information to the outside for monitoring. A major drawback to overcome is the high cost of these devices or IoT systems. This paper presents a low-cost IoT system for gas concentrators to detect anomalies. This IoT system, which has been evaluated, concentrates and analyses exhaled air using an MQ sensor.